About Galerucella lineola (Fabricius, 1781)
Galerucella lineola (Fabricius, 1781) adults reach a body length of 4–5 millimetres, or 0.16–0.20 inches. Their bodies are almost cylindrical. The base body color is brownish-yellow, with a darker spot on both the pronotum and elytra. Their antennae and underside are black, while their legs are slightly lighter in color. Larvae of this species are gray-white to brownish, and look similar to small caterpillars. Recorded food plants for this species are Salix alba, Salix viminalis, Salix caprea, Salix pentandra, Salix cinerea, Salix myrsinifolia, Salix fragilis, Populus nigra, Corylus avellana, Alnus glutinosa, Betula pendula, and Alnus incana. Some sources consider these beetles a pest, as they can cause severe damage to foliage by gnawing holes in leaves during some years. This species is widespread across the Palearctic realm, ranging from Ireland to Japan, and is also found in the Near East and North Africa. Galerucella lineola inhabits areas along the banks of watercourses, ponds, and lakes, from lowlands up to foothills.
